---
title: "AWS Lambda API changes, deprecations and deadlines | Harbyn"
description: "AWS Lambda: 24 upcoming deadlines and 25 recorded changes as of 2026-10-25, each with its source."
canonical: "https://harbyn.com/vendors/aws-lambda"
last-updated: 2026-10-08
---

# AWS Lambda: API changes and deadlines

Markdown version of <https://harbyn.com/vendors/aws-lambda>.

Cloud. 24 upcoming deadlines, 25 recorded changes. Every entry cites the AWS Lambda page we read it from.

## What we read

The AWS Lambda pages and feeds our ingestion visits, politely and on a schedule.

- **Deprecations**: <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html>
- **Changelog**: <https://docs.aws.amazon.com/lambda/latest/dg/lambda-updates.rss>
- **Changelog**: <https://api.github.com/advisories?affects=@aws-sdk/client-lambda,aws-lambda-powertools&per_page=20&sort=published&direction=desc>

## What the scanner looks for

How `harbyn scan` recognises AWS Lambda in a repository, on your machine. Nothing leaves it.

- **Packages**: `npm @aws-sdk/client-lambda`, `pypi aws-lambda-powertools`

## Upcoming deadlines

| Deadline | Change | Use instead | Details | Source |
| --- | --- | --- | --- | --- |
| Oct 31, 2026 | Python 3.10 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-10-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Nov 10, 2026 | .NET 8 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-net-8-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Nov 10, 2026 | .NET 9 container runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-net-9-container-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Mar 31, 2027 | Ruby 3.3 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-ruby-3-3-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Apr 30, 2027 | Node.js 22 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-node-js-22-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2027 | Java 11 on Amazon Linux 2 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-11-on-amazon-linux-2-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2027 | Java 17 on Amazon Linux 2 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-17-on-amazon-linux-2-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2027 | Java 8 on Amazon Linux 2 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-8-on-amazon-linux-2-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2027 | Python 3.11 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-11-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jul 29, 2027 | functions on 8 deprecated runtimes cannot be created from July 29, 2027 or updated from August 31, 2027 | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-deprecated-runtimes-block-create-2027-07-29-and-update-2027-08-31.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Aug 31, 2027 | functions on java8, go1.x, provided, ruby2.7, nodejs14.x and python3.7 cannot be updated from August 31, 2027 | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-oldest-runtimes-block-update-2027-08-31.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Mar 31, 2028 | Ruby 3.4 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-ruby-3-4-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Apr 30, 2028 | Node.js 24 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-node-js-24-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Oct 31, 2028 | Python 3.12 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-12-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Nov 14, 2028 | .NET 10 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-net-10-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Mar 31, 2029 | Ruby 4.0 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-ruby-4-0-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Amazon Linux 2023 OS-only runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-amazon-linux-2023-os-only-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Java 11 on Amazon Linux 2023 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-11-on-amazon-linux-2023-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Java 17 on Amazon Linux 2023 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-17-on-amazon-linux-2023-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Java 21 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-21-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Java 25 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-25-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Java 8 on Amazon Linux 2023 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-java-8-on-amazon-linux-2023-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Python 3.13 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-13-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |
| Jun 30, 2029 | Python 3.14 runtime deprecation | - | <https://harbyn.com/changes/aws-lambda/2026-10-08-python-3-14-runtime-deprecation.md> | <https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html> |

## Change history

Newest first, by the date AWS Lambda announced it. This is the archive: past changes are not warnings, and changes we recorded after they took effect are marked as such.

### October 2026

- Oct 8, 2026, Feature: [Node.js 26 runtime in public preview, general availability targeted for November 2026](https://docs.aws.amazon.com/lambda/latest/dg/lambda-runtimes.html) (effective Nov 2026)